| A practical soil radon （^222Rn） measurement method |
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| 引用本文： | DING Weicheng,WANG Yi,LI Yuanjing,FANG Fang,YANG Liu. A practical soil radon （^222Rn） measurement method[J]. 核技术(英文版), 2010, 21(3): 182-186 |
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| 作者姓名： | DING Weicheng WANG Yi LI Yuanjing FANG Fang YANG Liu |
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| 作者单位： | DING Weicheng(Department of Engineering Physics, Tsinghua University, Key Laboratory of Particle & Radiation Imaging, Ministry of Education,Beijing 100084, China;Chengdu University of Technology, Key Laboratory of Applied Nuclear Technology in Geosciences, Chengdu 6100);WANG Yi,LI Yuanjing(Department of Engineering Physics, Tsinghua University, Key Laboratory of Particle & Radiation Imaging, Ministry of Education,Beijing 100084, China);FANG Fang,YANG Liu(Chengdu University of Technology, Key Laboratory of Applied Nuclear Technology in Geosciences, Chengdu 610069, China) |
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| 摘 要： | <正>Soil radon measurement of high stability and sensitivity is widely applied,and in some applications,such as in uranium prospecting,~(222)Rn should be distinguished from ~(220)Rn.To meet this requirement,a practical method based on soil radon diffusion and accumulation theory to measure soil radon by Alpha Particle Spectroscopy(α-PS)is discussed in this paper.Theα-PS measurement method can effectively overcome the effects of ~(220)Rn and its daughters (~(216)Po,~(212)Bi,~(212)Po).The system can eliminate the impact of soil radon field disturbance and non-uniformity through soil radon static diffusion.Radon daughters(~(218)Po,~(214)Po)are accumulated under the action of an electrostatic force, which not only enhances the measurement sensitivity,but also increases robustness of the measurement.Simultaneous measurement of multiple points can increase the comparability of measurement data and the measurement efficiency. Experimental data shows that the soil radon measurement method was robust.So it has wide applications such as in geological prospecting,in fissure groundwater exploration and in ground subsidence inspection.
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| 关 键 词： | 测量方法 氡气场 土壤 测量灵敏度 地下水勘查 铀矿勘探 非均匀性 测量数据 |
A practical soil radon (222Rn) measurement method |
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| DING Weicheng,WANG Yi,LI Yuanjing,FANG Fang,YANG Liu. A practical soil radon (222Rn) measurement method[J]. , 2010, 21(3): 182-186 |
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| Authors: | DING Weicheng WANG Yi LI Yuanjing FANG Fang YANG Liu |
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| Abstract: | Soil radon measurement of high stability and sensitivity is widely applied, and in some applications, such as in uranium prospecting, 222Rn should be distinguished from 220Rn. To meet this requirement, a practical method based on soil radon diffusion and accumulation theory to measure soil radon by Alpha Particle Spectroscopy (α-PS) is discussed in this paper. The α-PS measurement method can effectively overcome the effects of 220Rn and its daughters (216Po, 212Bi, 212Po). The system can eliminate the impact of soil radon field disturbance and non-uniformity through soil radon static diffusion. Radon daughters (218Po, 214Po) are accumulated under the action of an electrostatic force,which not only enhances the measurement sensitivity, but also increases robustness of the measurement. Simultaneous measurement of multiple points can increase the comparability of measurement data and the measurement efficiency.Experimental data shows that the soil radon measurement method was robust. So it has wide applications such as in geological prospecting, in fissure groundwater exploration and in ground subsidence inspection. |
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| Keywords: | Soil radon 222Rn diffusion and accumulation theory Soil radon concentration measurement |
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